The State Department announced the release of Mark Swidan, Kai Li and John Leung. A U.S. government official told NBC News the three were exchanged for two Chinese detainees.

The three US nationals were swapped for four people, including three Chinese citizens who were returned to China. View on euronews

Mark Swidan, Kai Li, and John Leung have been released from detention, a spokesperson for the National Security Council said.